Guides for machines having a bed over which stock is fed



P. LEONARD Feb. 5, 1957 GUIDES FOR MACHINES HAVING A BED OVER WHICH STOCK IS FED Filed May 5, 1955 [we/wt v A jyfereg/ Leazzar United States Patent GUIDES FOR MACHINES HAVING A BED OVER WHICH STOCK IS FED Percy Leonard, Milford, N. H., assignor to Williams &

Hussey Machine Corporation, Milford, N. H., a corporation of New Hampshire Application May 5, 1955, Serial No. 506,252

1 Claim. (Cl. 144-253) This invention relates to thickness planers and other machines having beds over which stock is fed to be cut or otherwise worked upon.

Objects of the invention are to provide a guide which is simple and economical in construction, which does not project substantially above the level of the bed, which can be adjusted transversely of the bed quickly and easily, which can be removed readily when the bed is to be unobstructed, and which is durable and reliable in use.

According to the present invention each guide is mounted on a rod extending transversely of the bed below the level thereof by means of a bracket fast to the guide and slidable on the rod with means for locking the bracket in adjusted position on the rod. Preferably the rod is under the bed and the bracket is L-shaped with one leg extending upwardly to the guide and the other leg extending under the table to the rod. In the preferred embodiment the guide is secured to the bracket by means of a screw extending through the guide and into the upper end of the upper leg and the bracket is locked in position on the red by means of a screw extending lengthwise through the lower leg of the bracket.

For the purpose of illustration a typical embodiment of the invention is shown in the accompanying drawings in which Fig. 1 is a plan view;

Fig. 2 is a side elevation with the bed sectioned on line 22 of Fig. 1; and

Fig. 3 is an end view of the bed and associated guides.

The particular embodiments of the invention chosen for the purpose of illustration comprises a bed 1 over which the stock is fed, posts 2 extending upwardly from one side of the bed, a cutter head 3 slidable up and down on the posts 2, a cross piece 4 interconnecting the upper ends of the posts, a screw 6 journaled in the cross piece 4 and threaded into the cutter head for raising and lowering the cutter, a handle 7 for actuating the screw and a bolt 8 for locking the cutter head in adjusted position on the post. As shown in Fig. 2 one of the posts has a longitudinal recess in one side and mounted in the recess is a scale 9 which is disposed wholly within the outline of the post so as not to interfere with the sliding head and which is calibrated to indicate the distance between the bed and the head by the position of the upper surface of the head in relation to the scale. The arrangement of this scale is described and claimed in my copending ice 2 application Serial No. 506,251, filed on even date herewith.

The cutter head carries a cutter 11 and two hold-down rollers 12 and 13. As more fully described and claimed in the copending application of Thurston V. Williams, Serial No. 506,266, filed on even date herewith, the cutter is driven by means of a belt 14 and pulley 16, the roller 13 is driven by the cutter through kinematic means interconnecting the two within the housing 1.7, and a hood 18 is pivotally mounted on the cutter head by means of a rod 19, the hood extending upwardly and forwardly over the cutter to serve both as a chip breaker and as a guard.

According to the present invention elongate guides 21 are mounted on the bed lengthwise thereof to guide stock over the bed. The guides are mounted for adjustment transversely of the bed, on rods 22 located under the bed at opposite ends thereof, by means of brackets 23 which are L-shaped, one leg extending upwardly to the guide and the other leg extending under the table to one of the rods. One end of each guide is secured to the upstanding leg of a bracket by means of a screw 24 threaded into the upper end of the leg, and the bracket is locked in adjusted position on the rod by means of a screw 26 extending lengthwise through the lower leg.

The guides 21 may be moved to any desired position transversely of the bed by loosening the screws 26 and then locked in adjusted position by tightening the screws agaln.

It should be understood that the present disclosure is for the purpose of illustration only and that this invention includes all modifications and equivalents which fall within the scope of the appended claim.

I claim:

A cutting machine comprising a bed for supporting stock to be fed along a predetermined path past a cutting tool, the bed having parts on opposite sides of said path which extend downwardly from the bed both in advance of the tool and in the rear thereof, two rods extending transversely of said path under the bed with their ends extending into said parts, one in advance of the tool and one in the rear thereof, a guide strap extending over the bed lengthwise of said path with its ends projecting beyond the bed, L-shaped brackets having upper legs extending upwardly into engagement with the lower sides of said ends respectively and lower legs extending under the table in sliding engagement with said rods respectively, a screw extending through each of said strap ends and thence threading into one of said upper legs, and a screw extending lengthwise through each of said lower legs from the outer end thereof for locking the brackets on the rods.

References Cited in the file of this patent UNITED STATES PATENTS 2,183,190 Haas Dec. 12, 1939 2,265,335 Aumann Dec. 9, 1941 2,374,286 Hargadon Apr. 24, 1945 

